package edu.fpa.day0723;

import java.io.*;

public class BufferedTest {
    public static void main(String[] args) {
        //1、创建源
        File src = new File("l.txt");
        //2、选择流
        InputStream is = null;
        try {
            is = new BufferedInputStream(new FileInputStream(src));
            //3、操作(分段读取)
            byte[] flush = new byte[1024];  //缓冲容器
            int len= -1;   //接受长度
            while((len=is.read(flush))!=-1) {
                //字节数组-->字符串（解码）
                String str = new String(flush,0,len);
                System.out.println(str);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            //4、释放资源
            try {
                if(null!=is) {
                    is.close();  //避免出现空指针异常
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
